Very old thread I know but another point, set computer to mph NOT kph BECAUSE most computers' speed display shuts off < 2.5mph or 4.0kph (pushing bike walking or coasting at stop sign/light speed) so at mph setting your cadence will be displayed > 25rpm vs. > 40rpm for kph. So program computer to mph and 268 if sets to cms or 2682 if sets to mms so for ex.- 85 rpm cadence will display 8.5mph. Also you can mount 2 computers on your bike (1 regular + 1 cadence) and compare your computers' stopwatch ride times and know exactly the ratio of pedaling to coasting. You'll also know avg. cadence and max cadence and the odometer and trip distance will tell you your total pedal rotations (multiply 600 rpms x miles).